14 mph ) . the navy decided to convert asahi into a submarine salvage ship and she began the first stage of her conversion with the installation of specialized salvage equipment from february to august 1925 . from 1926 to october 1927 , the ship ' s 25 belle ##ville boilers were replaced with four kan ##pon type ro boilers at ku ##re naval arsenal . one of her two funnel ##s was also removed , and two large lifting frames were installed as part of the second stage of her conversion . the ship conducted experiments in submarine rescue using the old german submarine 0 @ - @ 1 ( ex @ - @ u @ - @ 125 ) . in may 1928 , asahi was
14 mph ). the navy decided to convert asahi into a submarine salvage ship and she began the first stage of her conversion with the installation of specialized salvage equipment from february to august 1925. from 1926 to october 1927, the ship's 25 belleville boilers were replaced with four kanpon type ro boilers at kure naval arsenal. one of her two funnels was also removed, and two large lifting frames were installed as part of the second stage of her conversion. the ship conducted experiments in submarine rescue using the old german submarine 0 @ - @ 1 ( ex @ - @ u @ - @ 125 ). in may 1928, asahi was